1 /* 2 * 3 * (C) Copyright 2000-2003 4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 5 * 6 * Copyright (C) 2004-2007, 2012 Freescale Semiconductor, Inc. 7 * TsiChung Liew (Tsi-Chung.Liew@freescale.com) 8 * 9 * SPDX-License-Identifier: GPL-2.0+ 10 */ 11 12 #include <common.h> 13 #include <asm/processor.h> 14 15 #include <asm/immap.h> 16 #include <asm/io.h> 17 18 DECLARE_GLOBAL_DATA_PTR; 19 /* 20 * get_clocks() fills in gd->cpu_clock and gd->bus_clk 21 */ 22 int get_clocks(void) 23 { 24 pll_t *pll = (pll_t *)(MMAP_PLL); 25 26 out_be32(&pll->syncr, PLL_SYNCR_MFD(1)); 27 28 while (!(in_be32(&pll->synsr) & PLL_SYNSR_LOCK)) 29 ; 30 31 gd->bus_clk = CONFIG_SYS_CLK; 32 gd->cpu_clk = (gd->bus_clk * 2); 33 34 #ifdef CONFIG_SYS_I2C_FSL 35 gd->arch.i2c1_clk = gd->bus_clk; 36 #endif 37 38 return (0); 39 } 40